专利名称：Thermoplastic bag structure发明人：Edward A. Vaquero,William P. Belias申请号：US08/918555申请日：19970822公开号：US05967663A公开日：19991019
摘要：A thermoplastic bag structure and method for making and packagingthermoplastic bags such that their tops are easily identified and the bags are easilyopened. The method for producing these bags begins with cutting a flattened
thermoplastic tube into two portions. At least one of the two portions is then collapsedto form a sheet of material having a pair of thermoplastic layers, a straight foldedbottom edge and a pair of top edges, at least one of which has a skewed-cut. Bag sidestructures are formed in the sheet of material at about bag-width distances apart. Thebags are then folded a predetermined number of times, in a direction transverse to thebag side structures, so that the skewed- cut top edge(s) of each of the bags remainsexposed.
申请人：TENNECO PACKAGING INC.
代理机构：Arnold White & Durkee
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